package com.qinghong.gulimall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.qinghong.common.constant.ProductConstant;
import com.qinghong.common.to.SkuReductionTo;
import com.qinghong.common.to.SpuBoundTo;
import com.qinghong.common.to.es.SkuEsModel;
import com.qinghong.common.utils.R;
import com.qinghong.gulimall.product.entity.*;
import com.qinghong.gulimall.product.feign.CouponFeignService;
import com.qinghong.gulimall.product.feign.SearchFeignService;
import com.qinghong.gulimall.product.feign.WareFeignService;
import com.qinghong.gulimall.product.service.*;
import com.qinghong.gulimall.product.vo.*;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.qinghong.common.utils.PageUtils;
import com.qinghong.common.utils.Query;

import com.qinghong.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SpuInfoDescService spuInfoDescService;

    @Autowired
    SpuImagesService spuImagesService;

    @Autowired
    AttrService attrService;

    @Autowired
    ProductAttrValueService productAttrValueService;

    @Autowired
    SkuInfoService skuInfoService;

    @Autowired
    SkuImagesService skuImagesService;

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    CouponFeignService couponFeignService;

    @Autowired
    BrandService brandService;

    @Autowired
    CategoryService categoryService;

    @Autowired
    WareFeignService wareFeignService;

    @Autowired
    SearchFeignService searchFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    /**
     * @TODO 高级部分
     * @param vo
     */
    // Seata At 分布式事务
    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
        // 1、保存spu基本信息 pms_spu_info
        SpuInfoEntity spuInfoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo,spuInfoEntity);
        spuInfoEntity.setCreateTime(new Date());
        spuInfoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(spuInfoEntity);
        // 2、保存Spu的描述图片 pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(spuInfoEntity.getId());
        descEntity.setDecript(String.join(",",decript));
        spuInfoDescService.saveSpuInfoDesc(descEntity);
        // 3、保存spu的图片集 pms_spu_images
        List<String> images = vo.getImages();
        spuImagesService.saveImages(spuInfoEntity.getId(),images);
        // 4、保存spu的规格参数 pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());
            AttrEntity byId = attrService.getById(attr.getAttrId());
            valueEntity.setAttrName(byId.getAttrName());
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(spuInfoEntity.getId());
            return valueEntity;
        }).collect(Collectors.toList());
        productAttrValueService.saveProductAttr(collect);

        // 5.保存当前spu对应的sku信息 gulimall_sms -> sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds,spuBoundTo);
        spuBoundTo.setSpuId(spuInfoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if (r.getCode() != 0){
            log.error("远程保存sku信息失败");
        }

        // 5.1 sku的基本信息
        List<Skus> skus = vo.getSkus();
        if (skus != null && skus.size() > 0){
            skus.forEach(item -> {
                String defaultImg = "";
                for (Images image : item.getImages()) {
                    if (image.getDefaultImg() == 1){
                        defaultImg = image.getImgUrl();
                    }
                }
                SkuInfoEntity infoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,infoEntity);
                infoEntity.setBrandId(spuInfoEntity.getBrandId());
                infoEntity.setCatelogId(spuInfoEntity.getCatalogId());
                infoEntity.setSaleCount(0L);
                infoEntity.setSpuId(spuInfoEntity.getId());
                infoEntity.setSkuDefaultImg(defaultImg);
                skuInfoService.saveSkuInfo(infoEntity);

                Long skuId = infoEntity.getId();

                List<SkuImagesEntity> collect1 = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity -> {
                    // 返回true就是需要 false就是剔除
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());

                // 图片 pms_sku_image
                skuImagesService.saveBatch(collect1);
                // TODO 没有图片的路径无需保存

                // 销售属性信息
                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> collect2 = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity skuSaleAttrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, skuSaleAttrValueEntity);
                    skuSaleAttrValueEntity.setSkuId(skuId);
                    return skuSaleAttrValueEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(collect2);

                //  优惠 满减 跨库
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item,skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if (skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1){
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (r1.getCode() != 0){
                        log.error("远程保存sku信息失败");
                    }
                }

            });
        }


    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity spuInfoEntity) {
        this.baseMapper.insert(spuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> queryWrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)){
            queryWrapper.and((w) -> {
               w.eq("id",key).or().like("spu_name",key);
            });
        }
        String status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)){
            queryWrapper.eq("publish_status",status);
        }
        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && "0".equalsIgnoreCase(brandId)){
            queryWrapper.eq("brand_id",brandId);
        }
        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId) && "0".equalsIgnoreCase(catelogId)){
            queryWrapper.eq("catalog_id",catelogId);
        }
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                queryWrapper
        );

        return new PageUtils(page);
    }

    /**
     * 商品上架
     * @param spuId
     */
    @Override
    public void up(Long spuId) {
        // 1.查出当前spuid对应的所有sku信息 品牌的名字
        List<SkuInfoEntity> skuInfoEntities = skuInfoService.getSkusBySpuId(spuId);
        List<Long> skuIdList = skuInfoEntities.stream().map(SkuInfoEntity::getId).collect(Collectors.toList());

        // TODO 查询当前sku的所有规格属性
        List<ProductAttrValueEntity> entities = productAttrValueService.baseAttrlistforspu(spuId);
        List<Long> attrIds = entities.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        List<Long> searchAttrIds = attrService.selectSearchAttrs(attrIds);

        HashSet<Long> idSet = new HashSet<>(searchAttrIds);
        List<SkuEsModel.Attrs> attrsList = entities.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attrs attrs1 = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attrs1);
            return attrs1;
        }).collect(Collectors.toList());

        Map<Long, Boolean> stockMap = null;
        try {
            // TODO 发送远程调用 库存系统查询是否有库存
            R r = wareFeignService.getSkusHasStock(skuIdList);
            //
            TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>(){

            };
            stockMap = r.getData(typeReference).stream()
                    .collect(Collectors.toMap(SkuHasStockVo::getSkuId, item -> item.getHasStock()));
        } catch (Exception e) {
            log.error("库存查询异常:原因:{}"+e);
        }

        // 2.封装每个sku信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts = skuInfoEntities.stream().map(sku -> {
            // 组装需要的数据
            SkuEsModel model = new SkuEsModel();
            BeanUtils.copyProperties(sku,model);
            // skuImg skuImg  brandName brandImg catalogName
            // attrs attrId attrName attrValue
            model.setSkuPrice(sku.getPrice());
            model.setBrandImg(sku.getSkuDefaultImg());
            // hasStock hasScore

//            if (finalStockMap == null){
//                model.setHasStock(true);
//            }else {
//                model.setHasStock(finalStockMap.get(sku.getId()));
//            }
            // TODO 热度评分 0
            model.setHasStock(true);
            model.setHotScore(0L);
            // TODO 品牌名字 和 分类
            BrandEntity brandEntity = brandService.getById(model.getBrandId());
            model.setBrandName(brandEntity.getName());
            model.setBrandImg(brandEntity.getLogo());

            CategoryEntity categoryEntity = categoryService.getById(model.getCatalogId());
            model.setCatalogName(categoryEntity.getName());

            // 设置检索属性
            model.setSttrs(attrsList);

            return model;
        }).collect(Collectors.toList());

        // TODO 将数据发送给es进行保存 gulimall-search
        R rr = searchFeignService.productStatusUp(upProducts);
        if (rr.getCode() == 0){
            // 远程调用成功
            // TODO 修改当前spu的状态
            baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
        }else {
            // 远程调用失败
            // TODO 重复调用？
            // feign调用流程
            /**
             * 1.构造请求数据
             * 2. 发送请求并执行
             * 3执行请求会有重试机制
             */
        }

    }

    @Override
    public SpuInfoEntity getSpuInfoBySkuId(Long skuId) {
        SkuInfoEntity byId = skuInfoService.getById(skuId);
        SpuInfoEntity spuInfoEntity = getById(byId.getSpuId());
        return spuInfoEntity;
    }

}